src/com/owncloud/android/ui/activity/UploadFilesActivity.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012-2013 ownCloud Inc.
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License version 2,
   6  *   as published by the Free Software Foundation.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  *
  13  *   You should have received a copy of the GNU General Public License
  14  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  */
  17
  18 package com.owncloud.android.ui.activity;
  19
  20 import java.io.File;
  21
  22 import android.accounts.Account;
  23 import android.content.Intent;
  24 import android.os.AsyncTask;
  25 import android.os.Bundle;
  26 import android.os.Environment;
  27 import android.support.v4.app.DialogFragment;
  28 import android.view.View;
  29 import android.view.View.OnClickListener;
  30 import android.view.ViewGroup;
  31 import android.widget.ArrayAdapter;
  32 import android.widget.TextView;
  33
  34 import com.actionbarsherlock.app.ActionBar;
  35 import com.actionbarsherlock.app.ActionBar.OnNavigationListener;
  36 import com.actionbarsherlock.view.MenuItem;
  37 import com.owncloud.android.Log_OC;
  38 import com.owncloud.android.R;
  39 import com.owncloud.android.ui.CustomButton;
  40 import com.owncloud.android.ui.dialog.IndeterminateProgressDialog;
  41 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment;
  42 import com.owncloud.android.ui.fragment.LocalFileListFragment;
  43 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  44 import com.owncloud.android.utils.FileStorageUtils;
  45
  46
  47 /**
  48  * Displays local files and let the user choose what of them wants to upload
  49  * to the current ownCloud account
  50  *
  51  * @author David A. Velasco
  52  *
  53  */
  54
  55 public class UploadFilesActivity extends FileActivity implements
  56     LocalFileListFragment.ContainerActivity, OnNavigationListener, OnClickListener, ConfirmationDialogFragmentListener {
  57
  58     private ArrayAdapter<String> mDirectories;
  59     private File mCurrentDir = null;
  60     private LocalFileListFragment mFileListFragment;
  61     private CustomButton mCancelBtn;
  62     private CustomButton mUploadBtn;
  63     private Account mAccountOnCreation;
  64     private DialogFragment mCurrentDialog;
  65
  66     public static final String EXTRA_CHOSEN_FILES = UploadFilesActivity.class.getCanonicalName() + ".EXTRA_CHOSEN_FILES";
  67
  68     public static final int RESULT_OK_AND_MOVE = RESULT_FIRST_USER;
  69
  70     private static final String KEY_DIRECTORY_PATH = UploadFilesActivity.class.getCanonicalName() + ".KEY_DIRECTORY_PATH";
  71     private static final String TAG = "UploadFilesActivity";
  72     private static final String WAIT_DIALOG_TAG = "WAIT";
  73     private static final String QUERY_TO_MOVE_DIALOG_TAG = "QUERY_TO_MOVE";
  74
  75
  76     @Override
  77     public void onCreate(Bundle savedInstanceState) {
  78         Log_OC.d(TAG, "onCreate() start");
  79         super.onCreate(savedInstanceState);
  80
  81         if(savedInstanceState != null) {
  82             mCurrentDir = new File(savedInstanceState.getString(UploadFilesActivity.KEY_DIRECTORY_PATH));
  83         } else {
  84             mCurrentDir = Environment.getExternalStorageDirectory();
  85         }
  86
  87         mAccountOnCreation = getAccount();
  88
  89         /// USER INTERFACE
  90
  91         // Drop-down navigation
  92         mDirectories = new CustomArrayAdapter<String>(this, R.layout.sherlock_spinner_dropdown_item);
  93         File currDir = mCurrentDir;
  94         while(currDir != null && currDir.getParentFile() != null) {
  95             mDirectories.add(currDir.getName());
  96             currDir = currDir.getParentFile();
  97         }
  98         mDirectories.add(File.separator);
  99
 100         // Inflate and set the layout view
 101         setContentView(R.layout.upload_files_layout);
 102         mFileListFragment = (LocalFileListFragment) getSupportFragmentManager().findFragmentById(R.id.local_files_list);
 103
 104
 105         // Set input controllers
 106         mCancelBtn = (CustomButton) findViewById(R.id.upload_files_btn_cancel);
 107         mCancelBtn.setOnClickListener(this);
 108         mUploadBtn = (CustomButton) findViewById(R.id.upload_files_btn_upload);
 109         mUploadBtn.setOnClickListener(this);
 110
 111
 112         // Action bar setup
 113         ActionBar actionBar = getSupportActionBar();
 114         actionBar.setHomeButtonEnabled(true);   // mandatory since Android ICS, according to the official documentation
 115         actionBar.setDisplayHomeAsUpEnabled(mCurrentDir != null && mCurrentDir.getName() != null);
 116         actionBar.setDisplayShowTitleEnabled(false);
 117         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
 118         actionBar.setListNavigationCallbacks(mDirectories, this);
 119
 120         // wait dialog
 121         if (mCurrentDialog != null) {
 122             mCurrentDialog.dismiss();
 123             mCurrentDialog = null;
 124         }
 125
 126         Log_OC.d(TAG, "onCreate() end");
 127     }
 128
 129
 130     @Override
 131     public boolean onOptionsItemSelected(MenuItem item) {
 132         boolean retval = true;
 133         switch (item.getItemId()) {
 134             case android.R.id.home: {
 135                 if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
 136                     onBackPressed();
 137                 }
 138                 break;
 139             }
 140             default:
 141                 retval = super.onOptionsItemSelected(item);
 142         }
 143         return retval;
 144     }
 145
 146
 147     @Override
 148     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 149         int i = itemPosition;
 150         while (i-- != 0) {
 151             onBackPressed();
 152         }
 153         // the next operation triggers a new call to this method, but it's necessary to
 154         // ensure that the name exposed in the action bar is the current directory when the
 155         // user selected it in the navigation list
 156         if (itemPosition != 0)
 157             getSupportActionBar().setSelectedNavigationItem(0);
 158         return true;
 159     }
 160
 161
 162     @Override
 163     public void onBackPressed() {
 164         if (mDirectories.getCount() <= 1) {
 165             finish();
 166             return;
 167         }
 168         popDirname();
 169         mFileListFragment.onNavigateUp();
 170         mCurrentDir = mFileListFragment.getCurrentDirectory();
 171
 172         if(mCurrentDir.getParentFile() == null){
 173             ActionBar actionBar = getSupportActionBar();
 174             actionBar.setDisplayHomeAsUpEnabled(false);
 175         }
 176     }
 177
 178
 179     @Override
 180     protected void onSaveInstanceState(Bundle outState) {
 181         // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
 182         Log_OC.d(TAG, "onSaveInstanceState() start");
 183         super.onSaveInstanceState(outState);
 184         outState.putString(UploadFilesActivity.KEY_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
 185         Log_OC.d(TAG, "onSaveInstanceState() end");
 186     }
 187
 188
 189     /**
 190      * Pushes a directory to the drop down list
 191      * @param directory to push
 192      * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
 193      */
 194     public void pushDirname(File directory) {
 195         if(!directory.isDirectory()){
 196             throw new IllegalArgumentException("Only directories may be pushed!");
 197         }
 198         mDirectories.insert(directory.getName(), 0);
 199         mCurrentDir = directory;
 200     }
 201
 202     /**
 203      * Pops a directory name from the drop down list
 204      * @return True, unless the stack is empty
 205      */
 206     public boolean popDirname() {
 207         mDirectories.remove(mDirectories.getItem(0));
 208         return !mDirectories.isEmpty();
 209     }
 210
 211
 212     // Custom array adapter to override text colors
 213     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
 214
 215         public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
 216             super(ctx, view);
 217         }
 218
 219         public View getView(int position, View convertView, ViewGroup parent) {
 220             View v = super.getView(position, convertView, parent);
 221
 222             ((TextView) v).setTextColor(getResources().getColorStateList(
 223                     android.R.color.white));
 224             return v;
 225         }
 226
 227         public View getDropDownView(int position, View convertView,
 228                 ViewGroup parent) {
 229             View v = super.getDropDownView(position, convertView, parent);
 230
 231             ((TextView) v).setTextColor(getResources().getColorStateList(
 232                     android.R.color.white));
 233
 234             return v;
 235         }
 236
 237     }
 238
 239     /**
 240      * {@inheritDoc}
 241      */
 242     @Override
 243     public void onDirectoryClick(File directory) {
 244         pushDirname(directory);
 245         ActionBar actionBar = getSupportActionBar();
 246         actionBar.setDisplayHomeAsUpEnabled(true);
 247     }
 248
 249
 250     /**
 251      * {@inheritDoc}
 252      */
 253     @Override
 254     public void onFileClick(File file) {
 255         // nothing to do
 256     }
 257
 258     /**
 259      * {@inheritDoc}
 260      */
 261     @Override
 262     public File getInitialDirectory() {
 263         return mCurrentDir;
 264     }
 265
 266
 267     /**
 268      * Performs corresponding action when user presses 'Cancel' or 'Upload' button
 269      *
 270      * TODO Make here the real request to the Upload service ; will require to receive the account and
 271      * target folder where the upload must be done in the received intent.
 272      */
 273     @Override
 274     public void onClick(View v) {
 275         if (v.getId() == R.id.upload_files_btn_cancel) {
 276             setResult(RESULT_CANCELED);
 277             finish();
 278
 279         } else if (v.getId() == R.id.upload_files_btn_upload) {
 280             new CheckAvailableSpaceTask().execute();
 281         }
 282     }
 283
 284
 285     /**
 286      * Asynchronous task checking if there is space enough to copy all the files chosen
 287      * to upload into the ownCloud local folder.
 288      *
 289      * Maybe an AsyncTask is not strictly necessary, but who really knows.
 290      *
 291      * @author David A. Velasco
 292      */
 293     private class CheckAvailableSpaceTask extends AsyncTask<Void, Void, Boolean> {
 294
 295         /**
 296          * Updates the UI before trying the movement
 297          */
 298         @Override
 299         protected void onPreExecute () {
 300             /// progress dialog and disable 'Move' button
 301             mCurrentDialog = IndeterminateProgressDialog.newInstance(R.string.wait_a_moment, false);
 302             mCurrentDialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 303         }
 304
 305
 306         /**
 307          * Checks the available space
 308          *
 309          * @return     'True' if there is space enough.
 310          */
 311         @Override
 312         protected Boolean doInBackground(Void... params) {
 313             String[] checkedFilePaths = mFileListFragment.getCheckedFilePaths();
 314             long total = 0;
 315             for (int i=0; checkedFilePaths != null && i < checkedFilePaths.length ; i++) {
 316                 String localPath = checkedFilePaths[i];
 317                 File localFile = new File(localPath);
 318                 total += localFile.length();
 319             }
 320             return (FileStorageUtils.getUsableSpace(mAccountOnCreation.name) >= total);
 321         }
 322
 323         /**
 324          * Updates the activity UI after the check of space is done.
 325          *
 326          * If there is not space enough. shows a new dialog to query the user if wants to move the files instead
 327          * of copy them.
 328          *
 329          * @param result        'True' when there is space enough to copy all the selected files.
 330          */
 331         @Override
 332         protected void onPostExecute(Boolean result) {
 333             mCurrentDialog.dismiss();
 334             mCurrentDialog = null;
 335
 336             if (result) {
 337                 // return the list of selected files (success)
 338                 Intent data = new Intent();
 339                 data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 340                 setResult(RESULT_OK, data);
 341                 finish();
 342
 343             } else {
 344                 // show a dialog to query the user if wants to move the selected files to the ownCloud folder instead of copying
 345                 String[] args = {getString(R.string.app_name)};
 346                 ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no);
 347                 dialog.setOnConfirmationListener(UploadFilesActivity.this);
 348                 dialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
 349             }
 350         }
 351     }
 352
 353     @Override
 354     public void onConfirmation(String callerTag) {
 355         Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
 356         if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
 357             // return the list of selected files to the caller activity (success), signaling that they should be moved to the ownCloud folder, instead of copied
 358             Intent data = new Intent();
 359             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 360             setResult(RESULT_OK_AND_MOVE, data);
 361             finish();
 362         }
 363     }
 364
 365
 366     @Override
 367     public void onNeutral(String callerTag) {
 368         Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
 369     }
 370
 371
 372     @Override
 373     public void onCancel(String callerTag) {
 374         /// nothing to do; don't finish, let the user change the selection
 375         Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
 376     }
 377
 378
 379     @Override
 380     protected void onAccountSet(boolean stateWasRecovered) {
 381         if (getAccount() != null) {
 382             if (!mAccountOnCreation.equals(getAccount())) {
 383                 setResult(RESULT_CANCELED);
 384                 finish();
 385             }
 386
 387         } else {
 388             Log_OC.wtf(TAG, "onAccountChanged was called with NULL account associated!");
 389             setResult(RESULT_CANCELED);
 390             finish();
 391         }
 392     }
 393
 394
 395 }